US 12,474,429 B2
Device and method for estimating angle of reception signal
Sangrim Lee, Seoul (KR); Hojae Lee, Seoul (KR); and Kijun Jeon, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/002,210
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jun. 19, 2020, PCT No. PCT/KR2020/007940
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2021/256586, PCT Pub. Date Dec. 23, 2021.
Prior Publication US 2023/0236278 A1, Jul. 27, 2023
Int. Cl. G01S 3/48 (2006.01); G01S 3/04 (2006.01)
CPC G01S 3/043 (2013.01) [G01S 3/48 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for a received signal angle estimation, the method performed by a first communication device and comprising:
performing a random access procedure with a second communication device for an initial access, wherein the random access procedure comprises transmitting a random access preamble to the second communication device, receiving a random access response from the second communication device, performing a scheduled transmission to the second communication device using an uplink grant in the random access response, and monitoring a contention resolution;
receiving a reference signal from the second communication device through a 1-bit analog-to-digital converter (ADC); and
performing an angle estimation of the reference signal,
wherein the angle estimation is performed based on vertical arrangement estimation and horizontal arrangement estimation based on antennas arranged in two dimensions at the first communication device.